For example when Samoa(Apia) (UTC+14) enters the New Year at midnight Dec 31, 2016 (New Year 2017),
the local time in New York is 05am (morning) Dec 31, 2016, local time in London is 10am and local time in Sydney is 09pm (21:00) Dec 31, 2016.

Samoa and Christmas island (Kiribati) will be the first places to welcome New Year 2017 !
Locals at Cape Falealupo (Samoa) with World Time Zone black canga